A
Anonymous
Guest
How is the DBAN implementation of DOD 5220.22-M actually done?
As I understand it after reading the US Department of Defense 5220.22-M Clearing and Sanitization Matrix, there are three methods listed for overwriting data on a harddisk.
DOD 5220.22-M c: Overwrite all addressable locations with a single character, 1 pass.
DOD 5220.22-M d: Overwrite all addressable locations with a character, its complement, then a random character and verify, 3 passes + verify on last pass.
DOD 5220.22-M e: Overwrite all addressable locations with a character, its complement, then a random character, 3 passes.
Since the DBAN implementation of DOD 5220.22-M uses 7 passes +verify on the last pass one could guess that this might be the combination of DOD 5220.22-M e + DOD 5220.22-M c + DOD 5220.22-M d.
Is this right?
If so, DBAN is clearly exceeding the demands of DOD 5220.22-M - and a wiping alternative that corresponds to DOD 5220.22-M d or e should be added for those who just need DOD 5220.22-M compliance (to save time).
Have got it wrong?
As I understand it after reading the US Department of Defense 5220.22-M Clearing and Sanitization Matrix, there are three methods listed for overwriting data on a harddisk.
DOD 5220.22-M c: Overwrite all addressable locations with a single character, 1 pass.
DOD 5220.22-M d: Overwrite all addressable locations with a character, its complement, then a random character and verify, 3 passes + verify on last pass.
DOD 5220.22-M e: Overwrite all addressable locations with a character, its complement, then a random character, 3 passes.
Since the DBAN implementation of DOD 5220.22-M uses 7 passes +verify on the last pass one could guess that this might be the combination of DOD 5220.22-M e + DOD 5220.22-M c + DOD 5220.22-M d.
Is this right?
If so, DBAN is clearly exceeding the demands of DOD 5220.22-M - and a wiping alternative that corresponds to DOD 5220.22-M d or e should be added for those who just need DOD 5220.22-M compliance (to save time).
Have got it wrong?